Masking device



Feb. 20,1945 H. GREENBERG' ETAL ,6

MASKING DEVICE Filed May 10, 1943 EEf- JI'WCHM Hewr y Breanharg Hmwamd d y Patented Feb. 20, 1945 MASKING DEVICE Harry Greenberg, Dover, and Howard W. Brady,

Morristown, N. J.

Application May 10, 1943, Serial No. 486,398

(Granted under the act of March 3, 1883, as amended April 30, 1928; 370 0. G. 757) 3 Claims.

The invention-described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to us of any royalty thereon.

This invention relates to a masking device for use in protecting certain surfaces and areas, when it is desired to spray or paint components as hereinafter set forth. a

While the invention hereinafter described has particular utility and application in the spraying of'ammunition components, it is to be understood that the invention is not tobe so limited.

, In the assembling of certain ammunition elements, the need often arises that the major or greater part of the surface be painted for protective reasons andat thesame time avoid painting such parts as arming wires, firing pins and the like forming part of the ammunition element. Heretofore this has been accomplished by the manual and-the individual painting of each component, and avoiding those areas not to be painted. It is obvious that the procedure outlined above is costly and time consuming and at a slow rate of production unit per operator.

The primary object of this invention is to provide a device, whereby objects tobe sprayed may have certain component parts thereof shielded when it is desired to paint theremaining surface. The invention can best be undrstoodfrom the following descriptionto be read in view of the accompanying sheet of drawing in which:

Figure 1 shows thedevice affixed to an ammunition component. I

Figure 2 is a view in'perspectiv'e of the preferred embodiment of the device, and Figure 3 is a sectional view on the line 3-3 of Figure 1.

Referring to the drawing, 1 indicates the amand accessible handling. Secured to each of the handles are arms 4, and attached to each of the 1 arms is a protective cap 6 adapted to fit over and coverthe particular component desired to be masked. Itis obvious that the shape of the cap 6 will be determined-by the shape of the particular component desired to be shielded. Linking the'arms 2 is a band of spring steel 8 which will tend to keep ,the fixtures firmly engaged against any component.

To keep paint from seeping into the interior of any component, a center closure cap I0 may be provided which is held in position by means of a connecting arm 12 secured to the band 8.

In operating the device heretofore described, the handles 2 vare gripped and pressed and the caps 6 are fitted over the area desired to be shielded. The component can then be placed upon a turntable of any conventional type and I the spraying can be quickly accomplished.

It is to be understood that the invention is not to be limited to the size or shape of the caps as shown, but they may be so designed and shaped as to conform to any particular element to be shielded in a. painting or spraying operation.

What is claimed as new is: r

1. A device for masking definite areasin painting operations, comprising in combination a pair of linked handles having arms secured thereto, cup-shaped masking caps affixed to each of said arms and opening inwardly thereof and means for tensioning the device upon an object.

} 2. A device for masking definite areas in painting operations, comprising in combination a pair munition component having an arming wire la.

In this particular instance it is required that the body of. the component be sprayed while the armand in their fabing w'ires Ia remain unpainted ricated condition.

The masking shield has a pair of gripping handles 2, shaped to the contour of the hand for easy of handles having arms secured thereto, masking caps affixed to each of said arms, tension means linking the handles and a closure cap affixed to said tension means.

3. A deviceas in claim 1 in which the periphery of at least one of said cups comprises the trace of the intersection of two solids of revolution at right angles to each other.

HARRY GREENBERG. HOWARD W; BRADY. 

